Leer



I March 26,1935. w 0, FLEWNG 4 1,995,974

LEER 9 Filed NOV. 22, 1933 9 v v I0 27- 3 I VENTOR.

Memes/y HEM/1Y6 BY M M ATTORNEYS.

Patented Mar. 26, 1935 UNITED STATES PATENT- OFFICE LEER Warren 0. Fleming, Corning, N. Y., assignor to Corning Glass Works, Corning, N. Y., a corporation of New York Application November 22, 1933, Serial No. 699,218

Claims. (Cl. 198-108) This invention relates to leers and more parthe shaft 17. As the fiexible member is wound ticularly to leers used for annealing glass 'arupon the drum it will be seen that the carriage ticles. will be drawn toward the receiving end of the The object of the invention is to permit sileer ready for loading, in which position it is 5 multaneous annealing of articles which demand held by turning the wing nut 26 to contract the 5 dliferent annealing schedules in the same leer. brake band 22 and tighten the shoe 23 about the The above and other objects may be attained drum 19. The carriage is thus held in position by employing my invention which embodies for loading. After the carriage has been loaded among its features a leer having a leer belt which the wing nut 25 is backed ofi to relieve the prestravels at a constant speed, a carriage which sure of the brake shoe on the drum and by 10 rides upon and is driven by the leer belt and reason of the drag exerted upon the carriage by means for retarding the speed of motion of the the movement of the leer belt 11, it will be seen carriage so that the leer belt passes under it. that the carriage will be moved by and in the In the drawing: direction of the latter. By properly adjusting Fig. 1 is a side View partially in section of a the tension of. the brake band 22 the degree of 15 leer embodying my invention; frictional contact between the shoe 23 and drum Fig. 2 is a horizontal, sectional view taken on 19 can be regulated to permit the Carriage 29 the line 2-2 of Fig. 1; to be moved through the leer by the belt 11 at the Fig. 3 is an enlarged side view of the carriage desired rate o p d- After/Che a e as retarding means; and reached the end of the leer, it may be unloaded 20 Fig. 4 is an end view of Fig. 3. and returned to its original position by turning Referring to the drawing in detaiL'I employ the crank 20 and rotating the shaft 17 to again a leer 10 having a leer belt 11 which runs over wind the flexible member 30 on the drum 18. the usual sprocket wheels 12. The leer belt 11 By this arrangement it will be obvious that is driven in the direction of the arrows at a norarticles requiring the ordinary annealing treat- 25 mal speed by a motor 13 which operates through ment can be placed on the leer belt in the usual a suitable gearing 14 to drive shaft 15 to which manner-whereas articles which require a longer certain of the sprocket wheels 12 are secured. period of time to anneal can be placed on the' Mounted on the brackets 16, which are carcarriage 29 and annealed in the same leer.

ried by the supports for the side walls of the Hence in a single leer it is possible by using my 30 leer at itsreceiving end, is a shaft 17 carrying invention to anneal articles of widely varying intermediate its ends a drum 18. As shown in Fig. annealing schedules and as a result considerable 2, one end of the shaft 17 extends beyond the savings are efiected. I outer face of one wall of the leer 10 andcarries While in the foregoing there has been shown a brake drum 19 .4 nd a, rank 20, Atand described the preferred embodiment of my 35 tached to a bracket 21 carried by one of the leer invention, it. is 110 .b d sto d t at m or supports near the bracket 16 adjacent the brake an es in the detai s Of Construction, combidrum 19 1s a brake band 22 which surrounds the nation,v and arrangement of parts may be redrum 19 and carries a brake shoe 23 which parr to Wi ho p in m the pi n tially embraces the drum. Ears 24 extend out- SCOPE Of y invention as c aimed. 40

wardly from the adjacent ends of the band 22 and What is claimed is: I are perforated to receive a bolt 25 which carries 1. The combination with a leer having a conon its threaded end a wing nut 26 by which the tinuously moving leer belt, of an independently band 22 may be contracted about the drum 19 movable carriage supported on the leer belt and to cause the shoe 23 to frictionally engage the adapted to be moved by it,'and means for regu- 5 latter. A compression coil spring 27 surrounds lating the speed of movement of the carriage inthe bolt 25 between the ears 24 to urge the ears dependently of the speed of movement of the leer apart as the nut 26 is retracted on the bolt 25. belt.

Mounted within the leer on suitable rollers 28 2. The combination with a leer having a conwhich run on the leer belt 11 is'a carriage 29 tinuously moving leer belt, of a carriage sup- 50 to one end of which is attached one end of a ported on the leer belt for movement by it, a flexible member 30, the opposite end of which flexible member attached tothe carriage and to is secured to the drum 18. As shown the flexible the loading end of the leer, and means for paying member 30 is adapted to be wound upon the drum out the flexible member at a predetermined rate 18 by turning the crank 20 and thus rotating of speed. 55

3. The combination with a leer having a. conmember having one,end attached to the carriage, a winding drum to which the opposite end of the flexible member is attached and means for governing the speed of rotation of the winding drum as the carriage moves away from it under th influence of the leer belt.

4. The combination with a leer having a continuously moving leer belt, of a carriage supported on the'leer belt for movement by it, a flexible member having one end attached to the carriage,

a winding drum to which the opposite end of the flexible member is attached, means for govern- .ing the speed of rotation of the winding drum as ed on the leer belt for movement by it, a flexible member having one end attached to the carriage,

a winding drum to which the opposite end of the flexible member is attached and a brake for retarding the speed of rotation of the winding drum as the carriage moves away from it under the influence of the leer belt.

, WARREN O. FLEMING. 

